Dyfyniad APA

Winslow, I. O. (1890). The principles of agriculture for common schools. American Book Company.

Dyfyniad Arddull Chicago

Winslow, I. O. The Principles of Agriculture for Common Schools. New York, Cincinnati [etc.]: American Book Company, 1890.

Dyfyniad MLA

Winslow, I. O. The Principles of Agriculture for Common Schools. American Book Company, 1890.

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